MX2022006338A - Señalización de selección de múltiple transformada. - Google Patents

Señalización de selección de múltiple transformada.

Info

Publication number
MX2022006338A
MX2022006338A MX2022006338A MX2022006338A MX2022006338A MX 2022006338 A MX2022006338 A MX 2022006338A MX 2022006338 A MX2022006338 A MX 2022006338A MX 2022006338 A MX2022006338 A MX 2022006338A MX 2022006338 A MX2022006338 A MX 2022006338A
Authority
MX
Mexico
Prior art keywords
zero
decoder
current block
bitstream
mts index
Prior art date
Application number
MX2022006338A
Other languages
English (en)
Inventor
Tzu-Der Chuang
Ching-Yeh Chen
Chih-Wei Hsu
Man-Shu Chiang
Original Assignee
Hfi Innovation Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hfi Innovation Inc filed Critical Hfi Innovation Inc
Publication of MX2022006338A publication Critical patent/MX2022006338A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/18—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a set of transform coefficients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/186—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

Se proporciona un método para la selección de múltiple transformada (MTS). Un decodificador de video recibe datos de una corriente de bits para un bloque de pixeles que va a decodificarse como un bloque actual de una imagen actual de un video. El decodificador establece una indicación de puesta a cero basada en una o más indicaciones de coeficiente no nulo de subbloques del bloque actual. Cuando la indicación de puesta a cero indica que una región de puesta a cero no tiene un coeficiente no nulo, el decodificador analiza la corriente de bits en busca de un índice de MTS. Cuando la indicación de puesta a cero indica que la región de puesta a cero tiene al menos un coeficiente no nulo, el decodificador establece el índice de MTS en un valor predeterminado sin analizar el índice de MTS de la corriente de bits. El decodificador selecciona un modo de transformada de acuerdo con el índice de MTS para el bloque actual. El decodificador reconstruye el bloque actual al utilizar el modo de transformada seleccionado.
MX2022006338A 2019-11-27 2020-11-27 Señalización de selección de múltiple transformada. MX2022006338A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962940955P 2019-11-27 2019-11-27
US17/105,573 US11228787B2 (en) 2019-11-27 2020-11-26 Signaling multiple transmission selection
PCT/CN2020/132374 WO2021104473A1 (en) 2019-11-27 2020-11-27 Signaling multiple transform selection

Publications (1)

Publication Number Publication Date
MX2022006338A true MX2022006338A (es) 2023-03-07

Family

ID=75974413

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2022006338A MX2022006338A (es) 2019-11-27 2020-11-27 Señalización de selección de múltiple transformada.

Country Status (7)

Country Link
US (1) US11228787B2 (es)
EP (1) EP4059218A4 (es)
KR (1) KR20220080001A (es)
CN (1) CN114747216A (es)
MX (1) MX2022006338A (es)
TW (1) TWI751811B (es)
WO (1) WO2021104473A1 (es)

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WO2019066574A1 (ko) * 2017-09-28 2019-04-04 삼성전자 주식회사 부호화 방법 및 그 장치, 복호화 방법 및 그 장치
CA3105072A1 (en) 2018-06-29 2020-01-02 Vid Scale, Inc. Adaptive control point selection for affine motion model based video coding
US11228787B2 (en) * 2019-11-27 2022-01-18 Mediatek Inc. Signaling multiple transmission selection
WO2024097377A1 (en) * 2022-11-02 2024-05-10 Beijing Dajia Internet Information Technology Co., Ltd. Methods and apparatus for transform training and coding

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3679083B2 (ja) 2002-10-08 2005-08-03 株式会社エヌ・ティ・ティ・ドコモ 画像符号化方法、画像復号方法、画像符号化装置、画像復号装置、画像符号化プログラム、画像復号プログラム
WO2017057953A1 (ko) 2015-09-30 2017-04-06 엘지전자 주식회사 비디오 코딩 시스템에서 레지듀얼 신호 코딩 방법 및 장치
WO2018123444A1 (ja) 2016-12-28 2018-07-05 ソニー株式会社 画像処理装置及び画像処理方法
US10567801B2 (en) * 2018-03-07 2020-02-18 Tencent America LLC Method and apparatus for video coding with primary and secondary transforms
US11297348B2 (en) * 2018-04-13 2022-04-05 Mediatek Inc. Implicit transform settings for coding a block of pixels
WO2019235887A1 (ko) * 2018-06-06 2019-12-12 엘지전자 주식회사 인트라 예측 모드에 기초하여 변환 인덱스 코딩을 수행하는 방법 및 이를 위한 장치
CA3113988A1 (en) * 2018-09-23 2020-03-26 Lg Electronics Inc. Method for encoding/decoding video signals and apparatus therefor
US11949870B2 (en) * 2019-06-21 2024-04-02 Qualcomm Incorporated Context modeling for low-frequency non-separable transformation signaling for video coding
US11677984B2 (en) * 2019-08-20 2023-06-13 Qualcomm Incorporated Low-frequency non-separable transform (LFNST) signaling
US11184617B2 (en) * 2019-09-19 2021-11-23 Qualcomm Incorporated Transform unit design for video coding
US11153576B2 (en) * 2019-09-20 2021-10-19 Qualcomm Incorporated Scaling matrices and signaling for video coding
US11206400B2 (en) * 2019-09-26 2021-12-21 Qualcomm Incorporated Low-frequency non-separable transform (LFNST) simplifications
US11228787B2 (en) * 2019-11-27 2022-01-18 Mediatek Inc. Signaling multiple transmission selection

Also Published As

Publication number Publication date
TWI751811B (zh) 2022-01-01
EP4059218A4 (en) 2023-03-22
EP4059218A1 (en) 2022-09-21
TW202131678A (zh) 2021-08-16
KR20220080001A (ko) 2022-06-14
US11228787B2 (en) 2022-01-18
CN114747216A (zh) 2022-07-12
US20210160541A1 (en) 2021-05-27
WO2021104473A1 (en) 2021-06-03

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